Automatic dialer for telephone numbers

Details Automatic dialer for telephone numbers Automatic dialer for telephone numbers

1984-07-06

1985-06-04

Schreyer, Stafford D.

H04M 1274

Patent

active

045216487

ABSTRACT:
An automatic dialer for telephone numbers comprises a control unit (100), a memory unit (200), a keyboard unit (300), a display unit (400), units for voltage feed (550) and regulation (500), units for amplification (600) and automatic regulation of signal level (700), a signal shaping unit (900) and a unit for connection with a telephone line (800). At least the memory unit (200) is housed in a removable portion that plugs into a fixed portion containing the other units. This memory unit contains identification information corresponding to a local telephone network; and a memory of the control unit contains identification information corresponding to the local telephone network to which this fixed portion is connected. The control unit comprises a comparator comparing the identification information of a fixed portion and of the removal portion which plugs into this fixed portion, and controls modifications of the operating program of the control unit as a function of the result of this comparison.

REFERENCES:
patent: 3555201 (1971-01-01), Kuehnle et al.
patent: 3665113 (1972-05-01), Blake et al.
patent: 4011414 (1977-03-01), Warren
patent: 4039761 (1977-08-01), Nicoud et al.
patent: 4126768 (1978-11-01), Grenzow

Affiliated with

Also associated with

Rating

Automatic dialer for telephone numbers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic dialer for telephone numbers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic dialer for telephone numbers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-830320